Phenology of Ferula Ovinia and Poa Bulbosa Species and Time of Livestock Entry to and Exit from Rangeland in Goorab of Isfahan Province

Subject Areas : natural resorces

maryam gholami ¹ , mostafa saeedfar ²

1 - M.Sc., Rangeland Management, Shahrekord University, Shahrekord, Iran*( Corresponding author)
2 - Rangeland Research Division, Research Institute of Forests and Rangelands, Isfahan, Iran

Received: 2018-02-15 Accepted : 2018-05-23 Published : 2020-10-22

Keywords: Ferula ovinia, Grazing management, semi-steppe rangelands, Phenology, Poa bulbosa,

Abstract :

Background and Objective: Phenological study is one of the important factors in optimal management of vegetation utilization. Ferula ovinia and Poa bulbosa are valuable rangeland species regarding to forage production and controlling soil erosion.In this research, an appropriate time for livestock entering to and exiting from the Goorab rangeland in 35th kilometers west of Fereydoun Shahr city, was carried out during four years (2014-2017). Method: In this research, ten plant bases were selected and information about the phonological stages for each base in the 7-day period during the growth phase and 15 days in the reproductive phase were measured and recorded at the special form. At the same time, meteorological statistics were collected from meteorological station adjacent the project site. Findings: Growing of the Ferula ovinia was started in mid-March, and continued until early-June. Flowering stems was started in late May and continued until mid-June. Seeds formations were begun in early-June and completed in late July. Growing of the Poa bulbosa was started in mid-March, and continued until early-June. Flowering stems was started in late May and continued until early-June. Seeds formations were begun in early-June and until the end of in late June. Discussion and Conclusion: The results showed that according to the species behavior in the occurrence of biological phenomena in the different years of study, the best entrance and departure time should be specified based on physiologic phenomena in the specie of Poa bulbosa which the best time can be late May and mid-May. The time of departure of the livestock could also be continued till ‏mid-September due to the existence of dried Ferula ovina which is used by livestock in the summer if the number of livestock has been observed based on livestock capacity.  

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